A Frequency Domain Approach to Blind Identification of MIMO FIR Channels Driven by Non-Stationary Sources

In this paper we discuss a new method for blind identification of MIMO convolutive channels driven by white quasi-stationary sources. The sources can assume arbitrary probability distributions and in some cases they can even be all Gaussian distributed. We demonstrate that by using the second order statistics of the channel outputs, under mild conditions on the non-stationarity of sources, and under the condition that channel is column-wise …